The Mobile Star Corp. is a development-stage company. The Mobile Star Corp. invention includes a closed booth, divided into two parts: an acoustically isolated space wherein the singer sings, and the recording and processing hardware, including a computer and a computerized disc dispenser. Four different instruments process the user's voice, including amplifier, compressor, reverb, and equalizer. The amplifier amplifies the voice to the appropriate volume compared to the background music. The compressor restricts singing volume to a preset maximum. The reverb imitates the acoustics of a hall. The equalizer allows frequency changes to loud and super loud frequencies for sound improvement.